Terms of service

13579 Design
Operated by Rathmor Ventures LLC

Effective date: 08/15/2026
Last updated: 08/15/2026

1. Agreement to these Terms

These Terms of Service ("Terms") are a binding agreement between you and Rathmor Ventures LLC, a Texas limited liability company doing business as 13579 Design ("13579 Design," "we," "us," or "our"), governing your access to and use of 13579design.com (the "Site") and your purchase of any product from us.

By browsing the Site, creating an account, or placing an order, you agree to these Terms. If you do not agree, please do not use the Site or place an order.

Our Refund Policy, Shipping Policy, and Privacy Policy are incorporated into these Terms by reference and form part of your agreement with us. Where a specific policy addresses a subject in more detail than these Terms, that policy controls as to that subject.

2. Eligibility

The Site is intended for users located in the United States who are at least 18 years of age, or who are using the Site under the supervision of a parent or legal guardian. By placing an order you represent that you are at least 18 and legally able to enter into this agreement, and that the payment method you use is your own or that you are authorized to use it.

We currently sell and ship only to addresses within the United States and its territories. We do not accept orders for delivery outside the United States.

3. Accounts

You may be able to create an account to speed up checkout and view order history. You are responsible for keeping your account credentials confidential and for all activity that occurs under your account. Please notify us at support@13579design.com if you believe your account has been accessed without your authorization. We may suspend or close an account that we reasonably believe has been used in violation of these Terms.

4. Our products are made to order

Every product we sell is produced individually after an order is placed. We do not hold finished inventory. This has a few consequences you should understand before you buy:

Production begins quickly. Once production starts, an order generally cannot be changed or cancelled. See Section 6.
Returns are limited. Because a returned item cannot be resold or restocked, we do not accept returns or exchanges for reasons of preference, including incorrect size selected or change of mind. We do stand behind defects in materials and workmanship. Our Refund Policy sets out the full terms and the claim process.
Sizing varies by product. Each listing includes a size chart reflecting the actual measurements of that specific blank garment or item. Please consult it before ordering; sizes are not consistent across product types or across manufacturers.

5. Product descriptions, images, and color

We work to describe and depict our products accurately, but we do not warrant that product descriptions, images, colors, dimensions, or other content on the Site are complete, current, or error-free.

Color reproduction. Screens differ, and printed ink on fabric does not match backlit color on a display. Variation between the on-screen preview and the delivered item — including in hue, saturation, and brightness — is a normal characteristic of printed merchandise and is not a defect.

Print placement. Small variations in the position, scale, and alignment of a printed design are inherent to the printing process. Variation within ordinary commercial tolerances is not a defect. Plainly misplaced, off-center, or misprinted work is, and is covered by our Refund Policy.

Garment variation. Blank garments and hardware are sourced from third-party manufacturers, and slight variation in fabric texture, shade, and finish can occur between production runs.

6. Orders, acceptance, and cancellation

Your order is an offer. When you submit an order you are making an offer to purchase. Our acknowledgment of your order — including any automatic confirmation email — confirms that we received it and does not constitute acceptance. A contract is formed only when we ship the item to you, and only as to the items actually shipped.

We may decline or limit orders. We may refuse, limit, or cancel any order, in whole or in part, at any time before shipment. Reasons may include suspected fraud, a payment we cannot verify, an unusual or reseller-scale quantity, an address we cannot ship to, a product or size that is no longer available from our manufacturer, or an error in pricing or product information. If we cancel an order after you have been charged, we will refund the amount charged for the cancelled items in full.

Your right to cancel. You may cancel or amend an order — including size and address corrections — by emailing support@13579design.com within the window stated in our Refund Policy, provided production has not yet begun. Once production begins, cancellation is not possible.

7. Pricing and typographical errors

All prices are stated in U.S. dollars and are subject to change without notice. The price that applies to your order is the price displayed at the time we accept the order.

Despite our efforts, a product on the Site may occasionally be listed at an incorrect price or with incorrect information because of a typographical, data, or system error. We reserve the right to cancel or refuse any order placed at an incorrect price, whether or not the order has been confirmed and whether or not your payment method has been charged. If we cancel on this basis after you have been charged, we will issue a full refund of the amount charged. We may, at our discretion, instead contact you to ask whether you wish to proceed at the corrected price.

Promotional codes and discounts are subject to any stated conditions, cannot be combined unless we say so, have no cash value, and may be withdrawn or modified at any time.

8. Payment and taxes

Payment is processed at checkout by our third-party payment processors. We do not receive or store your full payment card number. By submitting payment information you represent that you are authorized to use the payment method and authorize us to charge the full order amount, including product price, shipping, and applicable taxes.

We collect sales tax where we are required to do so. The tax shown at checkout is calculated based on the shipping address you provide.

If a payment is reversed, charged back, or otherwise fails after we have shipped, you remain responsible for the amount due, and we may suspend or decline future orders.

9. Shipping, delivery, and risk of loss

Shipping methods, estimated production times, and estimated transit times are described in our Shipping Policy. Production time and transit time are separate; the estimated delivery window begins when the item ships, not when the order is placed.

All delivery estimates are estimates only. We are not responsible for carrier delays, weather, or other events outside our control.

Title and risk of loss pass to you upon our delivery of the item to the carrier. Packages confirmed delivered by the carrier to the address you provided are your responsibility; if a confirmed-delivered package is missing, we will help you open a carrier claim, and we may in our discretion replace the item, but we are not obligated to do so.

Address accuracy is your responsibility. Please verify your shipping address at checkout. Packages returned to us as undeliverable due to an incorrect or incomplete address may be reshipped at your cost or refunded less the original shipping charge.

10. Returns and refunds

Our Refund Policy governs returns, replacements, and refunds, including what we cover, how to submit a claim, and the applicable time limits. Please read it before ordering. It is incorporated into these Terms.

11. Our intellectual property

The Site and everything on it — including our designs, artwork, illustrations, graphics, product photography, text, logos, and the names "13579 Design" and "Rathmor Ventures LLC" — are owned by Rathmor Ventures LLC or our licensors and are protected by copyright, trademark, and other intellectual property laws.

What you may do. We grant you a limited, personal, non-exclusive, non-transferable, revocable license to view the Site and to use the products you purchase for your own personal, non-commercial use. You may resell an individual item you bought, as any owner of a lawfully purchased good may.

What you may not do. Except as expressly permitted above, you may not, without our prior written permission:

reproduce, copy, trace, redraw, or create derivative works from any of our designs or artwork, in any medium;
apply our designs to any product, or have them applied by a print provider, fulfillment service, or manufacturer;
sell, license, or distribute our designs as digital files, embroidery files, cut files, print files, or artwork;
use our name, logo, or product photography to market goods or services that are not ours, or in a way that suggests affiliation, sponsorship, or endorsement;
use automated means to scrape, harvest, index, or copy the Site or its content, including for the purpose of training a machine learning or generative model; or
remove, obscure, or alter any copyright, trademark, or other proprietary notice.

Nothing on the Site grants any license or right to use any trademark of ours or of any third party.

12. Third-party rights and copyright complaints

Mahjong is a traditional game, and traditional tile symbols, terminology, and imagery are not owned by us. Our designs are our own original expression. Names, marks, and publications of third parties — including any mahjong league, organization, or set manufacturer — belong to their respective owners, and their appearance, if any, is nominative and does not imply affiliation with or endorsement by them.

If you believe material on the Site infringes a copyright you own or control, please send a notice under the Digital Millennium Copyright Act to support@13579design.com with: your physical or electronic signature; identification of the work claimed to be infringed; identification of the material you say is infringing and its location on the Site; your contact information; a statement that you have a good faith belief the use is not authorized by the copyright owner, its agent, or the law; and a statement, under penalty of perjury, that the information in the notice is accurate and that you are the owner or authorized to act on the owner's behalf. We will respond to properly submitted notices and may remove material and terminate accounts of repeat infringers.

13. Reviews, submissions, and user content

If you submit a review, photograph, comment, design suggestion, or other content to us or to the Site, you grant Rathmor Ventures LLC a worldwide, non-exclusive, royalty-free, perpetual, irrevocable, sublicensable license to use, reproduce, modify, publish, and display that content in connection with our business, including in marketing. You represent that you own or control the rights to what you submit and that it does not infringe anyone's rights.

We may remove or decline to publish any submission for any reason. We do not accept unsolicited design ideas or concepts and, if you send them anyway, you agree that we are under no obligation of confidentiality and owe no compensation for any use of ideas that are not protected by an enforceable intellectual property right.

14. Acceptable use

You agree not to use the Site to: violate any law; infringe anyone's rights; submit false, misleading, or fraudulent information; place orders using another person's payment method without authorization; interfere with or disrupt the Site or its security; introduce malware; attempt to gain unauthorized access to any system or account; or use the Site in a way that imposes an unreasonable load on our infrastructure.

15. Disclaimer of warranties

Except as expressly stated in these Terms or in our Refund Policy, the Site and all products are provided "as is" and "as available," without warranty of any kind. To the fullest extent permitted by law, Rathmor Ventures LLC disclaims all warranties, express or implied, including the implied warranties of merchantability, fitness for a particular purpose, title, and non-infringement. We do not warrant that the Site will be uninterrupted, secure, or error-free, or that any defect will be corrected.

Nothing in this section limits our obligations under our Refund Policy, and nothing in these Terms excludes or limits any warranty, right, or remedy that cannot be excluded or limited under applicable law, including the Texas Deceptive Trade Practices–Consumer Protection Act. Some jurisdictions do not allow the exclusion of certain warranties, so some of the above may not apply to you.

16. Limitation of liability

To the fullest extent permitted by law, Rathmor Ventures LLC and its members, managers, officers, employees, and agents will not be liable for any indirect, incidental, special, consequential, exemplary, or punitive damages, or for any loss of profits, revenue, data, goodwill, or business opportunity, arising out of or relating to these Terms, the Site, or any product, whether based in contract, tort, strict liability, or any other theory, and whether or not we have been advised of the possibility of such damages.

Our total aggregate liability arising out of or relating to these Terms, the Site, or any product will not exceed the greater of (a) the amount you paid to us for the product giving rise to the claim, or (b) fifty U.S. dollars ($50.00).

These limitations apply to the fullest extent permitted by law and do not limit any liability that cannot be limited under applicable law, including liability for fraud or for death or personal injury caused by our negligence. Some jurisdictions do not allow certain limitations, so some of the above may not apply to you.

17. Indemnification

You agree to indemnify, defend, and hold harmless Rathmor Ventures LLC and its members, managers, officers, employees, and agents from any claim, demand, loss, liability, and expense, including reasonable attorneys' fees, arising out of your breach of these Terms, your misuse of the Site or any product, your infringement of any third party's rights, or any content you submit.

18. Governing law and venue

These Terms and any dispute arising out of or relating to them, the Site, or any product are governed by the laws of the State of Texas, without regard to its conflict of laws rules. The United Nations Convention on Contracts for the International Sale of Goods does not apply.

You and we agree that the exclusive venue for any dispute will be the state or federal courts located in Travis County, Texas, and you consent to the personal jurisdiction of those courts. This does not prevent either party from bringing an individual claim in a small claims court of competent jurisdiction.

19. Class action waiver

You and Rathmor Ventures LLC agree that each may bring claims against the other only in an individual capacity, and not as a plaintiff or class member in any purported class, collective, consolidated, or representative proceeding.

If this waiver is found unenforceable as to a particular claim, that claim — and only that claim — will be severed and may proceed in court, while the remainder of this section remains in effect.

20. Time limit for claims

To the fullest extent permitted by law, any claim arising out of or relating to these Terms, the Site, or any product must be filed within two (2) years after the claim arose, or it is permanently barred.

21. Force majeure

We are not liable for any delay or failure to perform caused by circumstances beyond our reasonable control, including acts of God, natural disaster, severe weather, fire, labor disputes, supplier or manufacturer failure, shortage of materials, carrier disruption, epidemic, war, terrorism, civil unrest, governmental action, power failure, or failure of internet or telecommunications infrastructure.

22. Changes to these Terms

We may update these Terms at any time. The updated version takes effect when posted to the Site, and the "Last updated" date above will change. Your continued use of the Site or placement of a new order after an update constitutes acceptance of the updated Terms. The version of the Terms in effect at the time you place an order governs that order.

23. Changes to the Site and products

We may add, modify, retire, or discontinue any product, design, or feature of the Site at any time without notice and without liability. Designs may be produced in limited runs and may not be restocked.

24. General

Severability. If any provision of these Terms is held unenforceable, that provision will be modified to the minimum extent necessary to make it enforceable, or severed, and the remaining provisions will remain in full force.

No waiver. Our failure to enforce any provision is not a waiver of our right to do so later.

Assignment. You may not assign or transfer these Terms without our written consent. We may assign these Terms in connection with a merger, acquisition, or sale of assets.

Entire agreement. These Terms, together with our Refund Policy, Shipping Policy, and Privacy Policy, are the entire agreement between you and us regarding the Site and your purchases, and supersede any prior understanding on that subject.

Headings. Section headings are for convenience only and do not affect interpretation.